GenerateCounterSigners() public method

public GenerateCounterSigners ( SignerInformation signer ) : SignerInformationStore
signer SignerInformation
return SignerInformationStore
CmsSignedDataGenerator Class Documentation
Exemplo n.º 1
0
        public void TestSha1WithRsaCounterSignature()
        {
            IList certList = new ArrayList();
            IList crlList = new ArrayList();
            CmsProcessable msg = new CmsProcessableByteArray(Encoding.ASCII.GetBytes("Hello World!"));

            certList.Add(SignCert);
            certList.Add(OrigCert);

            crlList.Add(SignCrl);

            IX509Store x509Certs = X509StoreFactory.Create(
                "Certificate/Collection",
                new X509CollectionStoreParameters(certList));
            IX509Store x509Crls = X509StoreFactory.Create(
                "CRL/Collection",
                new X509CollectionStoreParameters(crlList));

            CmsSignedDataGenerator gen = new CmsSignedDataGenerator();

            gen.AddSigner(SignKP.Private, SignCert, CmsSignedDataGenerator.DigestSha1);

            gen.AddCertificates(x509Certs);
            gen.AddCrls(x509Crls);

            CmsSignedData s = gen.Generate(msg, true);
            SignerInformation origSigner = (SignerInformation) new ArrayList(s.GetSignerInfos().GetSigners())[0];
            SignerInformationStore counterSigners1 = gen.GenerateCounterSigners(origSigner);
            SignerInformationStore counterSigners2 = gen.GenerateCounterSigners(origSigner);

            SignerInformation signer1 = SignerInformation.AddCounterSigners(origSigner, counterSigners1);
            SignerInformation signer2 = SignerInformation.AddCounterSigners(signer1, counterSigners2);

            SignerInformationStore cs = signer2.GetCounterSignatures();
            ICollection csSigners = cs.GetSigners();
            Assert.AreEqual(2, csSigners.Count);

            foreach (SignerInformation cSigner in csSigners)
            {
                ICollection certCollection = x509Certs.GetMatches(cSigner.SignerID);

                IEnumerator certEnum = certCollection.GetEnumerator();

                certEnum.MoveNext();
                X509Certificate cert = (X509Certificate) certEnum.Current;

                Assert.IsNull(cSigner.SignedAttributes[Asn1.Pkcs.PkcsObjectIdentifiers.Pkcs9AtContentType]);
                Assert.IsTrue(cSigner.Verify(cert));
            }
        }